Nuntar wrote:
I thought from the description that "the wielder prefers to kill by swinging" (rather than stepping).
Yes, he does. But the context here is with regards to making a kill - they prefer to kill than not kill. So the preference of swinging vs stepping only matters when *both* methods would achieve the kill on next turn.
A Stalwart prefers to swing to kill -- this means that when given a choice between swinging to kill on next turn and stepping to kill on next turn, they'll pick the swinging option. A Guard is the opposite: they'll pick the stepping option first.